package feed

import (
  "encoding/json"
  "testing"
)

func TestV2ImpactUnmarshalInvalidData(t *testing.T) {
  test := []byte(`{}`)
  var val V2Impact

  if err := json.Unmarshal(test, &val); err == nil {
    t.Errorf("got \"%s\", exp error", val)
  }
}

func TestV2ImpactUnmarshalUnknown(t *testing.T) {
  test := []byte(`"foo"`)
  exp := "unknown CVSS v2 impact: foo"
  var val V2Impact

  err := json.Unmarshal(test, &val)
  if err == nil {
    t.Errorf("got \"%s\", exp error", val)
    return
  }

  if err.Error() != exp {
    t.Errorf("got \"%s\", exp \"%s\"", err.Error(), exp)
  }
}

func TestV2ImpactUnmarshalValid(t *testing.T) {
  tests := []struct {
    val string
    exp V2Impact
  } {
    { "\"NONE\"", V2ImpactNone },
    { "\"PARTIAL\"", V2ImpactPartial },
    { "\"COMPLETE\"", V2ImpactComplete },
  }

  for _, test := range(tests) {
    t.Run(test.val, func(t *testing.T) {
      var got V2Impact
      if err := json.Unmarshal([]byte(test.val), &got); err != nil {
        t.Error(err)
        return
      }

      if got != test.exp {
        t.Errorf("got \"%s\", exp \"%s\"", got, test.exp)
      }
    })
  }
}

func TestV2ImpactString(t *testing.T) {
  tests := []struct {
    val V2Impact
    exp string
  } {
    { V2ImpactNone, "NONE" },
    { V2ImpactPartial, "PARTIAL" },
    { V2ImpactComplete, "COMPLETE" },

    { V2Impact(255), "V2Impact(255)" },
  }

  for _, test := range(tests) {
    t.Run(test.exp, func(t *testing.T) {
      got := test.val.String()

      if got != test.exp {
        t.Errorf("got \"%s\", exp \"%s\"", got, test.exp)
      }
    })
  }
}